JPS5948494B2 - Wire twisting device with pre-twisting section - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wire twisting device having a pre-twisting section.

In the twisted wire device, as shown in FIG.
Once when the conductor passes through a hole plate for arranging the strands, passes through a rotating hollow shaft b for conductive wire having a twist opening a at one end, and enters the rotating buncher 1c, and once when the wire passes through a hole plate for organizing the strands, passes through a rotating hollow shaft b for conducting wire having a twisting opening a at one end, and enters the rotating buncher 1c. It is common practice to twist once and twice with capstan d.

However, as the number of strands increases, the strands on the outer periphery are fed longer than the strands in the center and are twisted, so when such stranded wires are further twisted within the buncher, the number of twists increases, but at first When twisting is applied, the relationship between the outer strands and the center strands remains the same, but as the number of twists increases, the outer strands stretch and there is a weak point in the arrangement of the outer strands. This has the drawback that the wires in the center protrude from the center, degrading the quality of the stranded wire, and it is very difficult to twist wires with extremely low wire elongation. There is a double type capstan in the re-buncher, and the winding drum is located in a direction perpendicular to the center axis of the re-buncher, which not only complicates the structure of the re-buncher but also if the capstan is located away from the twist opening a, Even if the wire is pulled at a constant speed with a capstan, the wire speed at the strand a becomes constant due to the wind pressure, and there is a drawback that a uniform and accurate twisted wire cannot be obtained. It is an object of the present invention to provide a wire twisting device having a pre-twisting section in which the above-mentioned drawbacks can be eliminated. The structure of the wire twisting device having a pre-twisting section according to the present invention will be explained in detail based on one embodiment shown in the drawings.
are erected, and hollow shafts 1, 2, 3, 4 for the first to fourth conducting wires are rotatably mounted on the same horizontal line 0-0 through each pillar, and the first and second pillars 1, 11 Capstan device A is in between
A buncher device C having a built-in winding device B is rotatably provided between the third and fourth columns I and IV, and the capstan device A is twisted on the outside of the first column 1. The center axis 01-01 and the diameter d of the first hollow shaft 1 for conducting wire are attached to the end 7 on the second support 11 side of the hollow shaft 1 for the first conducting wire, which has the opening 5 and the first driven pulley 6. The forked plate 8 is parallel to the containing plane, and the tips 81, 81 of the forked plate 8 are parallel to the central axis 01-01.
The fork portion tip 81,
The guide trochanters 9 and 10 are mounted on shafts 81, respectively, and the forked plate 8
A guide trochanter 11 for guiding the stranded wire W from the first hollow shaft 1 for conducting wire to one guide trochanter 9 and from the other guide trochanter 10 to the second hollow shaft 2 for conducting wire is provided in the central part of 12 is mounted on a shaft, and a stranded wire winding ring part 13 is provided at the end of the second conducting wire hollow shaft 2 on the side of the first support 1 at an intermediate position between the guide rotors 9 and 10, and a third
A second driven pulley 14 is provided at the side end of the column 111, and the buncher device C includes a third and a fourth column I,
Each end 16, 17 of the bow-shaped frame 15 is fixed to the hollow shafts 3, 4 for the third and fourth conducting wires protruding between the IVs, and the bow-shaped frame 15
A number of stranded wire guide pieces 18 are provided on the inside of the stranded wire, and opposing ends 19 and 20 of the third conductor hollow shaft 3 and the fourth conductor hollow shaft 4 are provided.
A winding bobbin frame 21 whose center of gravity is below the horizontal line 0-0 is loosely fitted into the winding bobbin frame 21 using, for example, a weight 35, and hollow shafts for the third and fourth conductive wires are fitted into the winding bobbin frame 21. 3,4
The winding bobbin shaft 2 is placed downward parallel to the central axis 0-0 direction.
2 are rotatably mounted above the reciprocating cylindrical cam shafts 25 of the guide rotors 24 that guide the combustion wire W to the winding bobbin 23, and the cylindrical cam shafts 25 are connected to the hollow shaft 4 for the fourth conducting wire. The winding bobbin shaft 22 is rotated by the cylindrical cam shaft 25 through a pulley 36, 37 and a belt 38. Hollow shaft 3 for fourth conductor,
4, guide rotors 29 and 30 whose peripheries are partially exposed to the hollow portions 3'' and 4'' are mounted on shafts, respectively, and guide rotors 31 and 32 are provided in the winding bobbin frame 21, The stranded wire W from the guide trochanter 30 on the fourth hollow shaft 4 for conducting wire is guided to the reciprocating guide trochanter 24, and
A third driven pulley 33 is provided at the outer end of the column 1V, and each of the first, second, and third driven pulleys 6, 14, and 33 is connected to a "first driven pulley" from a driving shaft 34. Number of rotations of the pulley 6 > Number of rotations of the second driven pulley 14 > Number of rotations of the third driven pulley 33
For example, the first driven pulley 6 is 4000 rpm,
The second driven pulley is 3900 rpm, the third driven pulley 33
is driven at 2000 rpm, and multiple strands w
The hollow shaft 1 for the first conducting wire, the guide trochanters 11 and 9, the stranded wire winding ring part 13, the guide trochanters 10 and 12, the guide trochanter 29 of the hollow shaft 3 for the second conducting wire, and the stranded wire of the buncher 15 The wire is wound onto the winding bobbin 23 of the stationary winding bobbin frame 21 in the buncher 15 through the guide piece 18 and the guide rotor 30 of the fourth hollow shaft 4.

In the figure, numeral 39 indicates a hole plate for organizing wires, and numeral 40 indicates a transmission device.

Furthermore, when the stranded wire W is wound around the winding bobbin 23 and the winding diameter increases, the pulley 37 has a possibility that the winding speed becomes higher than the entrance speed of the stranded wire, and the stranded wire may be cut. Therefore, a pulley with a slip device is used so that the stranded wire can be wound at the entrance speed.

This embodiment has the above-mentioned configuration, and in addition to the buncher device C, there is a capstan with guide rollers 9, 10 on a forked plate 8 in front thereof and a stranded wire winding ring 13 in the middle thereof. There is a pre-twisting device of device A, its construction is simple, each guide trochanter 9, 10 is in a symmetrical position in a plane parallel to the forked plate 8, and the other guide trochanters 9, 12 are in a symmetrical position. Since it is located near the horizontal line O-0, the moment of inertia is small. Since it is well balanced, it can rotate at high speed, and many twists can be easily and quickly applied between the twisting port 5 and the guide trochanter 11. The twisted wire is pulled out by the winding ring 13 and then enters the buncher device C.

In the buncher device C, the hollow shafts 3 and 4 for the third and fourth conducting wires serve as rotating shafts and are rotated by the third drive pulley 33, so that the twisted wires from the pre-twisting device rotate as a guide trochanter as a unit. 2
9. Pass through the stranded wire guide piece 18 in the buncher device C, the guide trochanter 30 of the fourth hollow shaft 4 for the third conducting wire, and then the third hollow shaft 3 for the third conducting wire.
The stationary winding bobbin frame 21 is loosely fitted to the hollow shaft 4 for the third and fourth conductive wires (the winding bobbin 23, weight 35, etc., of heavy objects are loosely fitted to the hollow shafts 3 and 4 for the third and fourth conductive wires). Center axis line (horizontal line O-
Since the center of gravity is located below the center axis O-O by providing the winding bobbin frame 21 below the center axis O-O, even if the buncher device C is rotating, the take-up bobbin frame 21 is always stationary. The second twist is applied between the guide rotors 30 and 31, and the guide rotor 32 in the winding bobbin frame 21 and the guide rotor 24 are reciprocated by the cylindrical cam shaft 25. Since there is no capstan inside the buncher, the wire pulled by the capstan inside the buncher is guided by the stranded wire guide piece on the inner wall of the buncher. 18 will not cause any damage.

In this embodiment, the rotation speed of the first driven pulley 6 > the rotation speed of the second driven pulley 14 > the third driven pulley 33 is determined from the driving shaft 34 by the pulley, belt, transmission 40, etc. For example, the first driven pulley 6 has a rotational speed of 4000 rpm.
, the second driven pulley is 3900 rpm, and the third driven pulley 3
3 can be rotated at 2000 rpm, so in a pre-twisting device in which the twisting port 5 and the capstan A are installed close to each other, the speed at which the twisting port A leaves the twisting port A can be kept constant without being disturbed by wind pressure. Since the correct twist is applied and the second twist is applied only slightly, the pre-twisting device can maintain the relationship between the strands in the central part and the strands in the outer periphery in almost the same relationship as in the initial product.

This invention has the above-mentioned construction and action, and there is a capstan close to the twisting port 5, and no capstan is provided in the buncher 1, so the distance between the twisting port and the capstan is short, which is different from the conventional one. As shown in the figure, the stranded wire is subjected to wind pressure, and the speed at which it exits the twisting port 5 does not become unstable, allowing accurate stranded wire to be made. Because of this, it can be rotated at high speed, and a sufficiently twisted strand can be produced without the strands in the center protruding to the outer periphery or the strands on the outer periphery breaking. Since the shaft 22 and the cylindrical cam shaft 25 that causes the guide trochanter to perform reciprocating traverse are parallel to the rotation axis of the buncher 15, the structure inside the buncher device can be simplified, and the stranding device can be made at a low price. Can be provided.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of an example of a conventional stranding device, and FIG. 2 is an embodiment of the stranding device having a pre-twisting section according to the present invention, where I is a first support column and 11 is a second support column. , 111 is the third
The column, IV is the fourth column, A is the capstan device, B is the winding device, C is the buncher device, D is the machine base, 0-O is the horizontal line, 0, -0, is the hollow shaft for the first conductor The central axis of 1
is the hollow shaft for the first conducting wire, 2 is the hollow shaft for the second conducting wire, and 3 is the third hollow shaft.
Hollow shaft for conducting wire, 4 hollow shaft for fourth conducting wire, 5 twist opening, 6
is the first driven pulley, 7 is the end of the hollow shaft 1 for the first conducting wire, 8 is the forked plate, 8 is the tip of the forked part, 9, 10, 11, 12
1 is a guide trochanter, 13 is a winding ring portion, 14 is a second driven pulley,
15 is a bow-shaped frame, 18 is a twisted wire guide piece, 19 and 20 are ends, 21 is a winding bobbin frame, 22 is a winding bobbin shaft, 23 is a winding bobbin, 24 is a guide trochanter, and 25 is a winding bobbin shaft. A cylindrical camshaft, 26 a gear, 27 a gear train, 29, 30, and 31 guide rotors, 33 a third driven pulley, w a bare wire, and W a stranded wire, respectively.

Claims (1)

[Claims] 1 The first to fourth pillars I, II, III, and IV are erected on the machine D, and the hollow shafts for the first to fourth conductors 1, 2, 3 and 4 are rotatably mounted on shafts,
A capstan device A is rotatably provided between the first and second columns I and II, and a buncher device C with a built-in winding device B is rotatably provided between the third and fourth columns III and IV. Device A has a twist opening 5 on the outside of the first support I.
and a surface including the central axis 0_1-0_1 of the first hollow shaft 1 for conducting wire and the diameter d at the end 7 on the second support II side of the first hollow shaft 1 for conducting wire having the first driven pulley 6. The fork-shaped plate 8 is parallel to
-0_1, and guide trochanters 9 and 10 are mounted on the ends 8_1 and 8_1, respectively.
In the central part of the fork-like plate 8, there is a section from the first conductor hollow shaft 1 to one guide trochanter 9, and from the other guide trochanter 10 to the second guide trochanter 9.
Guide trochanters 11 and 12 that guide the twisted wire W to the hollow shaft 2 for conducting wire
At the end of the second conductor hollow shaft 2 on the first column I side, there is a stranded wire winding ring part 13 at the intermediate position between the guide rotors 9 and 10, and on the third column III side. At the end there is a second driven pulley 14.
The buncher device C is formed by attaching each end 16, 17 of the bow-shaped frame 15 to the third and fourth hollow shafts 3, 4 for conducting wires protruding between the third and fourth pillars III, IV. A large number of stranded wire guide pieces 18 are provided inside the bow-shaped frame 15, and the horizontal line A winding bobbin frame 21 whose center of gravity is below 0-0 is loosely fitted, and the center axis of the third and fourth hollow shafts 3 and 4 for conducting wires is 0-0. A guide rotor 24 that guides the stranded wire W to the winding bobbin shaft 22 downward and to the winding bobbin 23 upward parallel to the direction.
The reciprocating cylindrical cam shafts 25 are rotatably mounted on each other, and the cylindrical cam shafts 25 are rotatable via a gear train 27 from a gear 26 fixed to the fourth conductor hollow shaft 4. The shaft 22 is rotated by the cylindrical camshaft 25 via pulleys 36, 37 and a belt 38, and the hollow shafts 3, 4 for the third and fourth conductors have hollow parts 3', 4' surrounding them. Guide trochanter 2 with a part of the
9 and 30, respectively, guide rotors 31 and 32 are provided in the winding bobbin frame 21, and the stranded wire W from the guide rotor 30 on the fourth conducting wire hollow shaft 4 is reciprocated. The fourth pillar I of the fourth conducting wire hollow shaft 4 is configured to be guided to the guide trochanter 24.
A third driven pulley 33 is provided at the outer end of the V;
Each of the second and third driven pulleys 6, 14, and 33 is connected to the driving shaft 34 so that the rotation speed of the first driven pulley 6>the rotation speed of the second driven pulley 14>the third driven pulley The plurality of strands w are connected to the first conducting wire hollow shaft 1, the guide rotors 11, 9, the twisted wire winding ring part 13, the guide rotor 10, 12. Winding of the stationary winding bobbin frame 21 in the buncher 15 via the guide trochanter 29 of the hollow shaft 3 for the second conducting wire, the stranded wire guide piece 18 of the buncher 15, and the guide trochanter 30 of the hollow shaft 4 for the fourth conducting wire. A wire twisting device having pre-twisting, characterized in that the wire is wound around a take-up bobbin 23.